He was the one who started this whole thing and then he sits back and watches everyone unravel around him
I had a neighbour like that was always amazed people couldn't see what she did - she cause huge storming out rows with her SIL and DIL.
Have you tried reading Games People Play: The Psychology of Human Relationships might help you spot patterns and avoid playing your assigned "role".
My IL have tried coming in our house saying it's DH - I paid bulk of the deposit and it's in joint names- they get ignore or laughed at and we do what we want anyway. I had odd thing moved DSis had people -family - moved in and things taken by her MIL - you have to deal with it so it's clear it's unacceptable.
Act as a door mat and people will wipe their feet all over you.
I still have the dogs (please don't get me wrong i do love them now but would never have chosen to have them)
You are being a massive martyr over this issue of having the dogs. You made the choice to keep them you are still making the choice to keep them.
Yet again and again it's mentioned how you took the dogs in - how you had "no choice" how you don't mind having them - how much damage they did but you don't mind - how their Dd dogs how you have to look after them - subtext aren't I great for doing this - but I want to keep them.
You seem to want praise for keeping them and having them cause problems -common puppy issues -in your house - no-one going to do that - no-one cares.
The DD who got them should care but clearly that's not happeneing and she should have been told how bloody irresponsible she was to try and keep dogs at a time in her life wouldn't allow her. Time for saying that has sailed - it's past now the time to say the dogs are mine --assuming you continue to want to keep them
Make a choice and own it.
I'd make sure the chips and vet are registered in your name - and I'd be making it clear having housed and paid for them they are your dogs and you are keeping them
In fact listening to you go on about the damge they have done to house instead of saying no to DD who got the dogs or making her make alternative arrangements - is almost certainly pissing the other kids off with you.
I don't doubt your ex has put you through hell - but you are not powerless here - you are making choicse and you can say no to anyone on any subject.
If someone enters your house and says get rid of pets - tell them to fuck off or treat it like a joke that can't possibly be serious. Put a boundary in don't assume they an unwritten one everyone will follow.